What this site is, how it works, and what it deliberately does not do. No accounts, no servers — every tool runs in your own browser.
This is a collection of small time tools that run entirely in your browser: a Pomodoro timer with activity tracking, an alarm clock, a countdown timer, a stopwatch, clocks and a time zone converter, and calculators for dates, worked hours and ages.
The guiding idea is that a tool you reach for ten times a day should open instantly, work without an account, and not treat your data as inventory. Everything here loads as a static page and does its work on your own device.
There is no backend. The whole site is static files — HTML, one JavaScript bundle and one stylesheet — served from a CDN. Nothing you type is transmitted, because there is nowhere for it to go: no database, no API, no user accounts.
Your settings, alarms, saved countdowns, world-clock cities and timesheet rows live in your browser's local storage. That has an obvious trade-off worth stating plainly: your data is private and instantly available, but it does not sync between devices or browsers, and clearing your browsing data clears it. The Data tab on the dashboard can export everything as JSON if you want a copy or want to move it.
Timing is done against the system clock rather than by counting intervals, which is why a timer left in a background tab still reports the correct elapsed time when you return. Time zone handling uses your browser's own IANA database, so daylight saving transitions are already accounted for rather than approximated with fixed offsets.
The site carries Google AdSense display ads on the home page and the individual tool pages. Those ads are third-party content: Google and its partners may set cookies and use them for ad measurement and personalisation, which is outside our control and covered by Google's own policies.
Ads are deliberately kept off the screens where they would be intrusive or inappropriate: the focus timer, the full-screen clock, the activity tracker and its reports, and error pages. Nothing on this site is sponsored content, and no tool's behaviour or recommendation is influenced by an advertiser.
The arithmetic in the calculators is exact and covered by automated tests — ISO week boundaries, leap years, month-end clamping, overnight shifts, daylight saving transitions. Where a convention is genuinely ambiguous, such as whether a date range includes its end day or how to treat a 29 February birthday, the choice is documented on the page itself rather than left implicit.
That said, these are conveniences, not systems of record. A browser tab is not a dependable alarm for a flight or an exam — set a phone alarm too. The hours calculator totals time; it does not know your overtime rules, statutory entitlements or tax. The clock is as accurate as your own device's clock, which it reads directly. And nothing here is legal, financial or payroll advice.
If something is wrong, unclear, or missing, that is worth hearing about — particularly factual errors in the written explanations, which are meant to be correct rather than merely present. Contact details are below.